<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17-beta.0/vue.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js"></script>
    <style>
   input{
       width:250px;
       height:30px;
       border-radius: 7px;
       border:1px solid #aaa;
   }
    </style>
</head>
<body>
    <div id="test">
        <input type="text" @keyup.enter="submit">
        <p>{{title}}</p>
        <img v-bind:src="url" alt="">
    </div>
    <script>
    new Vue({
        el:"#test",
        data:{
            title:"三体",
            url:"https://img1.doubanio.com/view/subject/s/public/s2768378.jpg"
        },
        methods:{
            submit(event){
                var self=this;
                let value=event.target.value;
               let url=`https://douban.uieee.com/v2/movie/search?q=${value}&count=1`;
               $.ajax({
                   url,
                   type:"get",
                   dataType:"jsonp",
                   success(res){
                       self.handleData(res);
                   }
               })
            },
            handleData(res){
                let title=res.subjects[0].title;
                let url=res.subjects[0].images.small;
                this.title=title;
                this.url=url;
            }
        }
    })
    </script>
</body>
</html>